export function noBignumber() {
  throw new Error('No "bignumber" implementation available');
}
export function noFraction() {
  throw new Error('No "fraction" implementation available');
}
export function noMatrix() {
  throw new Error('No "matrix" implementation available');
}
export function noIndex() {
  throw new Error('No "index" implementation available');
}
export function noSubset() {
  throw new Error('No "matrix" implementation available');
}